package com.peachpasswords.haptics

import android.content.Context
import android.os.Build
import android.os.VibrationEffect
import android.os.Vibrator
import android.os.VibratorManager
import android.view.HapticFeedbackConstants
import android.view.View

object PeachHaptics {
    fun onUnlock(view: View) = view.performHapticFeedback(sinceR(HapticFeedbackConstants.CONFIRM, HapticFeedbackConstants.VIRTUAL_KEY))
    fun onEntryTap(view: View) = view.performHapticFeedback(HapticFeedbackConstants.VIRTUAL_KEY)
    fun onCopy(view: View) = view.performHapticFeedback(HapticFeedbackConstants.CLOCK_TICK)
    fun onSheetOpen(view: View) = view.performHapticFeedback(HapticFeedbackConstants.CONTEXT_CLICK)
    fun onSheetClose(view: View) = view.performHapticFeedback(sinceR(HapticFeedbackConstants.GESTURE_END, HapticFeedbackConstants.CONTEXT_CLICK))
    fun onError(view: View) = view.performHapticFeedback(sinceR(HapticFeedbackConstants.REJECT, HapticFeedbackConstants.LONG_PRESS))
    fun onButton(view: View) = view.performHapticFeedback(HapticFeedbackConstants.VIRTUAL_KEY)
    fun onCardFocus(view: View) = view.performHapticFeedback(HapticFeedbackConstants.VIRTUAL_KEY)

    /**
     * CONFIRM / REJECT / GESTURE_END only exist from API 30. The constants are
     * `int`s inlined at compile time, so on API 26-29 they don't fail loudly —
     * `performHapticFeedback` just returns false and the device stays silent.
     * Each falls back to the nearest pre-30 effect with the same intent: a short
     * tick for confirm, a heavier buzz for reject, a soft click to close.
     */
    private fun sinceR(api30: Int, fallback: Int): Int =
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) api30 else fallback

    fun onLongPress(context: Context) = vibrate(context, 20L, 180)
    fun onSwipeCopy(context: Context) = vibrate(context, 15L, 150)

    fun onPairingComplete(context: Context) {
        val vibrator = getVibrator(context) ?: return
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            vibrator.vibrate(
                VibrationEffect.createWaveform(
                    longArrayOf(0, 30, 60, 50),
                    intArrayOf(0, 180, 0, 120),
                    -1,
                )
            )
        }
    }

    private fun vibrate(context: Context, duration: Long, amplitude: Int) {
        val vibrator = getVibrator(context) ?: return
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
            vibrator.vibrate(VibrationEffect.createOneShot(duration, amplitude))
        } else {
            @Suppress("DEPRECATION")
            vibrator.vibrate(duration)
        }
    }

    private fun getVibrator(context: Context): Vibrator? {
        return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
            val manager = context.getSystemService(VibratorManager::class.java)
            manager?.defaultVibrator
        } else {
            @Suppress("DEPRECATION")
            context.getSystemService(Context.VIBRATOR_SERVICE) as? Vibrator
        }
    }
}